<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图片验证码</title>
</head>
<body>
<div><a id="kanbuq" href="javascript:;" title="看不清楚?点击换一张"><img
        src="{:url('/admin/index/captcha')}"
        onclick="this.src='/admin/index/captcha?'+Math.random()"/></a></div>
</body>
</html>